Spread Coating

Spread coating is a process for coating fabric with very thin layers of rubber.

The Spread Coating machine consists of a large metal knife and a long oven.

First the rubber is dissolved in solvent to create a viscous liquid, which is then poured on the fabric and spread evenly with the knife to give a very thin rubber layer. The coated fabric is dryed in the oven, evaporating all the solvent to just leave the rubber on the fabric.

Coating a 150 meter roll of fabric with a 0.10 mm rubber layer takes about 8 hours, or approximately 10 rounds in the machine.

AlphaTec® materials (formerly known as TRELLCHEM®) are typically manufactured using the Spread Coating process.

  • Last updated 2/20/2020
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